EP0685604A4 - Automatic faucet. - Google Patents

Automatic faucet.

Info

Publication number
EP0685604A4
EP0685604A4 EP95903005A EP95903005A EP0685604A4 EP 0685604 A4 EP0685604 A4 EP 0685604A4 EP 95903005 A EP95903005 A EP 95903005A EP 95903005 A EP95903005 A EP 95903005A EP 0685604 A4 EP0685604 A4 EP 0685604A4
Authority
EP
European Patent Office
Prior art keywords
water
light
region
sensor
discharge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95903005A
Other languages
German (de)
French (fr)
Other versions
EP0685604A1 (en
EP0685604B1 (en
Inventor
Tatsumi Hamanaka
Mitsuyoshi Seki
Takatoshi Kawabata
Toshiyuki Murahashi
Tadahiro Honda
Yoshiyuki Kaneko
Hiroyuki Iwashita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toto Ltd
Original Assignee
Toto Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP5786194A external-priority patent/JPH07268917A/en
Application filed by Toto Ltd filed Critical Toto Ltd
Publication of EP0685604A1 publication Critical patent/EP0685604A1/en
Publication of EP0685604A4 publication Critical patent/EP0685604A4/en
Application granted granted Critical
Publication of EP0685604B1 publication Critical patent/EP0685604B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/05—Arrangements of devices on wash-basins, baths, sinks, or the like for remote control of taps
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/05—Arrangements of devices on wash-basins, baths, sinks, or the like for remote control of taps
    • E03C1/055—Electrical control devices, e.g. with push buttons, control panels or the like
    • E03C1/057—Electrical control devices, e.g. with push buttons, control panels or the like touchless, i.e. using sensors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86389—Programmer or timer

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Domestic Plumbing Installations (AREA)
  • Magnetically Actuated Valves (AREA)
  • Vending Machines For Individual Products (AREA)

Abstract

The invention has its object to eliminate erroneous detection of earthenware and running water and exactly detects only hands in an automatic faucet which has a hand detecting sensor (S) and automatically starts and stops discharge of water. The sensor (S) has a light projector and a light receptor. The sensor (S) is adjusted in such a manner that a directional axis (d) of a region (detecting region) where a projecting region of the light projector and a light receiving region of the light receptor overlap intersects a discharge flow of water and an angle of intersection is constantly made equal to or smaller than 70 DEG irrespective of an amount of water flow. A level of reflected light detected by the light receptor is periodically sampled so that a mean value and a dispersion value are calculated from the latest height lots of sample data. So, starting and stopping of discharge of water is controlled on the basis of the mean value and dispersion value. <IMAGE>
EP95903005A 1993-12-20 1994-12-20 Automatic faucet Expired - Lifetime EP0685604B1 (en)

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
JP32028093 1993-12-20
JP320280/93 1993-12-20
JP32028093 1993-12-20
JP336916/93 1993-12-28
JP33691693 1993-12-28
JP33691693 1993-12-28
JP57861/94 1994-03-28
JP5786194A JPH07268917A (en) 1994-03-28 1994-03-28 Faucet
JP5786194 1994-03-28
PCT/JP1994/002156 WO1995017556A1 (en) 1993-12-20 1994-12-20 Automatic faucet

Publications (3)

Publication Number Publication Date
EP0685604A1 EP0685604A1 (en) 1995-12-06
EP0685604A4 true EP0685604A4 (en) 1997-07-23
EP0685604B1 EP0685604B1 (en) 2003-03-26

Family

ID=27296400

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95903005A Expired - Lifetime EP0685604B1 (en) 1993-12-20 1994-12-20 Automatic faucet

Country Status (10)

Country Link
US (2) US5918855A (en)
EP (1) EP0685604B1 (en)
KR (1) KR100386872B1 (en)
CN (1) CN1054174C (en)
AT (1) ATE235615T1 (en)
CA (1) CA2155431A1 (en)
DE (1) DE69432350T2 (en)
SG (1) SG70555A1 (en)
TW (1) TW286345B (en)
WO (1) WO1995017556A1 (en)

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US9169626B2 (en) 2003-02-20 2015-10-27 Fatih Guler Automatic bathroom flushers
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US9243392B2 (en) 2006-12-19 2016-01-26 Delta Faucet Company Resistive coupling for an automatic faucet
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US8407828B2 (en) 2007-11-30 2013-04-02 Masco Corporation Of Indiana Faucet mounting system including a lift rod
EP2574701A1 (en) 2007-12-11 2013-04-03 Masco Corporation Of Indiana Electrically controlled Faucet
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US8776817B2 (en) 2010-04-20 2014-07-15 Masco Corporation Of Indiana Electronic faucet with a capacitive sensing system and a method therefor
US8561626B2 (en) 2010-04-20 2013-10-22 Masco Corporation Of Indiana Capacitive sensing system and method for operating a faucet
US8899259B2 (en) 2010-05-21 2014-12-02 Masco Corporation Of Indiana Faucet mounting anchor
US8554496B2 (en) 2010-07-26 2013-10-08 International Business Machines Corporation Water consumption monitor
US8619240B2 (en) 2011-02-14 2013-12-31 Fairchild Semiconductor Corporation Adaptive response time acceleration
CN105804166B (en) 2011-03-15 2019-03-26 仕龙阀门公司 Automatic faucet
US9695579B2 (en) 2011-03-15 2017-07-04 Sloan Valve Company Automatic faucets
US9170148B2 (en) 2011-04-18 2015-10-27 Bradley Fixtures Corporation Soap dispenser having fluid level sensor
US9267736B2 (en) 2011-04-18 2016-02-23 Bradley Fixtures Corporation Hand dryer with point of ingress dependent air delay and filter sensor
US9074357B2 (en) * 2011-04-25 2015-07-07 Delta Faucet Company Mounting bracket for electronic kitchen faucet
US8820705B2 (en) 2011-07-13 2014-09-02 Masco Corporation Of Indiana Faucet handle with angled interface
US11091901B2 (en) 2011-07-13 2021-08-17 Delta Faucet Company Faucet handle with angled interface
US9057184B2 (en) 2011-10-19 2015-06-16 Delta Faucet Company Insulator base for electronic faucet
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CA2873015C (en) 2012-03-21 2018-11-13 Bradley Fixtures Corporation Basin and hand drying system
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Also Published As

Publication number Publication date
KR960701266A (en) 1996-02-24
CA2155431A1 (en) 1995-06-29
WO1995017556A1 (en) 1995-06-29
ATE235615T1 (en) 2003-04-15
US5758688A (en) 1998-06-02
KR100386872B1 (en) 2003-08-21
TW286345B (en) 1996-09-21
CN1118178A (en) 1996-03-06
US5918855A (en) 1999-07-06
DE69432350D1 (en) 2003-04-30
DE69432350T2 (en) 2003-10-16
EP0685604A1 (en) 1995-12-06
SG70555A1 (en) 2000-02-22
CN1054174C (en) 2000-07-05
EP0685604B1 (en) 2003-03-26

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